Evaluate Expressions

Front

What is an expression in mathematics?

Back

An expression is a combination of numbers, variables, and operations (like addition, subtraction, multiplication, and division) that does not have an equal sign.

Tags

CCSS.6.EE.A.2B

Front

What should you solve first in an expression with multiple operations?

Back

You should follow the order of operations, which is Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right).

Tags

CCSS.6.EE.A.2C

Front

If x = 14 and y = 6, what is (x + y) ÷ 2?

Back

(14 + 6) ÷ 2 = 20 ÷ 2 = 10.

Tags

CCSS.6.EE.A.2C

Front

What is a variable in mathematics?

Back

A variable is a symbol (like x or y) that represents an unknown number.

Tags

CCSS.6.EE.A.2B

Front

What does it mean to evaluate an expression?

Back

To evaluate an expression means to calculate its value by substituting the variables with numbers.

Tags

CCSS.6.EE.A.2C

Front

What is the result of (8 x 2) ÷ 4?

Back

(8 x 2) ÷ 4 = 16 ÷ 4 = 4.

Tags

CCSS.5.OA.A.1

CCSS.5.OA.A.2

Front

What is the value of x if 2x = 10?

Back

x = 10 ÷ 2 = 5.

Tags

CCSS.6.EE.B.7

Front

What is the sum of 10 and 5?

Back

10 + 5 = 15.

Tags

CCSS.1.OA.C.6

CCSS.2.OA.B.2

Front

What is the difference between an expression and an equation?

Back

An expression does not have an equal sign, while an equation does.

Tags

CCSS.L.1.5A

CCSS.L.1.5B

CCSS.L.K.5A

Front

If Jackson has x more dollars than Indra, and Indra has $10, how much does Jackson have if x = $5?

Back

Jackson has $10 + $5 = $15.

Tags

CCSS.6.EE.B.5